Woah, hold on here guys and gals, are forgetting that Tao easily withstood Kid Goku's Kamehameha Wave with only minor injuries? The only reason that grenade killed him was because he was exhausted and couldn't boost his durability with Ki anymore. Granted Soi Fon has a lot of tricks up her sleeves, this fight isn't as cut and dry as it appears.

It's okay. We all make battle threads that we think it's solid but turns out, it's not. I posted that Cobra (Fairy Tail) vs Coco (Toriko) battle thread. It was a stomp. Anything could happen in the battle forums.

Excluding the moon feat, Roshi still took out a mountain with his Kamehameha before the 21 budokai, Tao's was stronger than Roshi at that point. It's not though Soifon's durability calls for mountain level attacks anyway, even if we scale Tao's attacks down they should still be able to harm her.